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[Q] LG LS970 Microphone issues

Hi everyone!
So I bought a LG LS970 with a known issue, two of the lights on the bottom wouldn't come on. It wasn't a big deal to me but that part did eventually die, it stopped recognizing that it the USB was plugged in and so I replaced the mic flex and usb charging piece. After replacing it everything worked great except for the microphone. It works fine when I switch to speakerphone or headset but they can't hear me if I don't.
So I walked around for a few weeks looking like a tool talking on speakerphone everywhere. I ordered a second mic flex part and replaced it, booted up and once again everything works great except the microphone. Same issue.

Can anyone help me figure out what I should be looking for to get the microphone working normally again? I did a factory reset yesterday thinking maybe it was a software issue but that didn't help anything.

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